Machine for inserting fastenings



Mar. 6, 1923.

G. GODDU MACHINE FOR INSERTING FASTENINGS l m h w m 2 w 6 85 21 w 222M 3w w M 1 44 5 2 Filed Feb.

Mar. 6, 1923.-

G. GODDU MACHINE FOR INSERTING FASTENINGS 2 sheets-sheet 2 Filed Feb.24, 191

Fig.3 [l2 enonen comm, or W NCHESTER, AssacnUsErrrs, assimsma To VUNITEDsnon MACHINERY CORPORATION, or EATER-SON, new JERSEY, A conronnrron onNEW JERSEY.

:MACHINE "roe INSVERTINVG FASTENINGS.

Application filed February fl, 1919. Serial No. 278,695.

To all whom it may concern:

Be it known thatI, GEORGE State of Massachusetts, haveinvented 'cer tainImprovements in Machines forInserting Fastcnings, of which thefollowing-description, in connection with the accompanying drawings, isa specificatiomfilike reference characters onrthe, drawings :indi--eating like parts in the several figureslj serting fastenings, and, byway (of-illustration, is herein shown as embodied mamachine forinserting. screw-threaded fasten-j pended while-a finished, .piece ofwork is beingremov'ed from the machine and a fresh piece substitutedtherefor and frequently.

during operation on a single piece-of work. The screw-threaded wire fromwhich the fastenings are formed is thrust into the work by a wirecarrying spindle which. communicates its motion to the other operatingparts of the machine. The spindle is oper:

ated at high speed, and both the spindle and the operating parts drivenby it are heavy. Consequently, their momentum is such that quick andfrequent stopping of the machine would cause excessive wear and breaka eof its elements, thus making it impractlcab e to discontinue theoperation'of the entire: machine whenever it 1s necessary to suspend 1the insertion of fastenings. The machine is, therefore, operatedcontinuously, the :insertion of fasteningsbeing suspended when desiredby maintaining the wire feeding-mechanism out ofengagement with itsactuator by manually controlled means. Inasmuch as there is no certaintyas to the timeinthe cycle of operations-of the machine when the manuallycontrolled means will be actuated,

the manner of engagement of the wire feeding means with its continuouslymoving actuator upon the resumption ofthe insertion of fastenings maybe'such asto cause a fastening shorter than the proper'length for agiventhicknes's of work to be inserted or the Gonnn, a izen of theUnitedSta'tes, residing atWmmachinemay fail entirely to insert afastenmg in the first fastening location. Various vide satisfactorymechanism for suspending the insertion of the fastenings but so far asknown, none of these mechanisms have gone 111tOugQIleI'fll use, due,largely, to the added expense involved in. embodying them in themachine.

One of the objects of this inventionis to provide mechanism which willinsure that This invention relates to machines for-1nthe'first'fastening insertedupon the initiaattempts have heretofore.been vmade to. pro

tion of the insertion of fasteningswill be of full length, .which willbe efficient and reliable in operation, and which will, at the sametime, be simple in construction and readily applicable to such machinesas at present constructed and consequently capable of being embodied inthe machines at a low cost. Preferably,the mechanism is so "constructedand arranged as to cause the feeding means to engage its actuatorsubstant-iallly at the beginning "of a-cycle of operations of themachine Whichends'with the severance of thesection'of the wireinsertedinthe work from the wire. An important feature ofthe invention residesin the provision of manually operated meansfor suspendingithe insertionof fastenings and means for automatically control llIlg' the operationof the manually operated means so as to cause the insertion offastenings to be resumed at the appropriate time inthe cycle ofoperations of the machine. Preferably, the manuallyoperated meanscomprises a member operable when in one position to render thewirefeeding means inoperative and movable from such position to cause themachine again; to feed the wire,

the member being normally precluded from i v such movement by a stopinterposed in its path of movement and operatively connected with thewire severing means. In machines of said type the work support is raisedto work clamping position by a treadle, and heretofore the constructionof the machine has been such that the work support droppedimmediatelyupon the re lease of "the treadle. Inasmuch as the treadle might be-released by the operator at any time in the cycle of operations of themachine, the work support was liableto be lowered before the lastfastening desired was i completely inserted.

Another object of the invention is to insure that the work support willnot be lowered until the last fastening has been completely driven, andto this end, one of the features of the invention aims to provide meanscontrolled by the wire severing means for retaining the work support inwork clamping position regardless of the time in the cycle of operationsof the machine when the treadle is released by the operator until thelast fastening desired has been fully inserted into the work and severedfrom the wire.

Other objects and features of the invention will; appear as thedescription proceedsand will be claims.

Fig. l of the drawings is a view in side elevation of a machineembodying the invention.

F 2 isa view on an enlarged scale taken from the other side ofthemachine and showing the means for raising and lowering the work support.

Fig. 3 is a plan view partly in section of the parts shown in Fig. 2.

Fig. 4risa planview of the means for suspendingthe feed of the wireand'the-operating and controlling means therefor taken along the line4:4c of Fig. 1, and

Fig. showsthe same parts as Fig. i in elevation.

The machine frame comprises a column 2 having mounted thereon ahead 4which carriesthe fastening inserting instrumentalities of the machineincluding a wire-carrying spindle 6. The wire used in the machine isthreaded'and is. screwed into the work by rotation of the spindle, thewire being fed downwardly by devices including a wire feed lever 8operated by a cam 10 on one of a pair of lateral shafts 12 j'ournaled onthe head i of the machine and driven from the wire spindle 6.

The work to be operated upon is supported on a work support 13 in theform of a horn carried by a horn post 14'. to which is secured a bracket15 in which is mounted a rod (not shown) co-operating with a measuringrod 1 6 depending from the rear endof the wire feed lever 8 to regulatethe extent pointed out in the appended of movement of: the wire feedingdevices of the spindle 6 to causethe insertion into the work of asection of'the wire equalin length to the thickness of the work. Thesection of the wire inserted into the work is severed from the remainderof the wire to form an individual fastening by mechanism inclicatedgenerally at 17 and operated by devices driven from the cam shaft andcomprising a link 18 (see Fig. 1).

The operating mechanism for the machine comprises a driving shaft 19 themovement of which is transmitted to the wire-carrying spindle 6 bypulleys 20, 21; and 22, and

which is governed in its operation by clutch mechanism 23 controlled bya treadle 24. The elements of the machine hereinbefore describedconstitute in themselves no part of the P en in ention. fo whi h r asona more detailed, description of, them is deemed unnecessary.

As hereinbefore; pointed out, the wire carrying spindle 6 and the partsoperated thereby are relatively-heavy, and the wire-carrying spindle isrotated at high speed so that a quick stoppage of the rotation-of thespindle the finger frombeneaththe collar 25 so asto.

cause the feeding of; the wiretol-be resumed, I provide arod-f3.22havingv a collar- 34; formed with a lug 36 disposed for.engagement with one side-of the free-end of thefinger. The rod 32alsohasmountedithereon a collar 3'8\-pr0vided--: with a-l ug e0.arranged for engagement withthe other. side of the finger 26 to move-itbeneath the: collar 25w-henit is desired that the feeding-of'i'thew-irebe again suspended.

The rod 32is preferably adaptedfon control by the operaton andL'naayhemoved at any time in: the cycle of operations of the machine, whereasthe invention aims to. causethe wire feedingmeans to become operativeonly at a predetermined time-in. the cycle of operations of the machine,such; that: thefirst fastening inserted willhe of full length.Accordingly, the collar 34: is loosely mounted on the rod 32 andi'syieldingly'urged-inthe directionv of the finger 26 and against-thecollar 38 by aspiring-2L2: coiled. about the rod" 32 i and connected" atone end to the collar. 34: and at its other end to a collar 43 fixed. tothe rod 32- Uponmovementoftherod' 32 in an appropriate direction, thespring 42 presses the lug 3fijagaiinst the finger- 26. If, however, thefinger 26 is prevented" frommovement at the timewvhenthe rod32- isoperated, the spring 42wiililipermit movement of the collar 34* on therod, being itself put under tension so. as thereafter to exert: a forcetending to move the finger from wire feed" suspending. position.Preferably, and in the illustrated construction, the rod-32'is moved tocarry thefinger- 26; from beneath the collar. 25 byan arm 4 45aextending inwardlyfromiherod and designed tobe engaged bya cam surface416' formed on a breakage of the parts.

treadle lever 48- having its hub mounted loosely on a shaft 50 fixed ina bracket 51 de-e Normally interposed in the path of move,

ment of the finger 26 so as to preclude its movement from wire feedsuspending position under the impulse of the spring a2 is a stop 5ecarried by a stud slidably mounted in a bearing 56 of an arm 58constituting part of the wirev severing mechanism operated by the link18. The stop 5%, as shown, is T-shaped having one of its arms projectingin the direction of the finger 26 and be ing disposed to overlie thefinger upon move ment of the finger from beneath the collar 25. A spring60 is interposed between the arm 58 and a collar 62 onthe stud of the.

stop 5% to permit downwardmovement of the arm 58 when the finger 26 isdisposed beneath the projection of the stop without stood from theforegoing, the stop 54: operates automatically to control the movementof the finger from wire feed suspending position, the projection on thestop being lifted from the path of the finger 26 by the wire severingmechanism substantially simultaneously with the operation of the wiresevering mechanism so that the wire feeding means is made operative atthe beginning of a cycle of operations of the machine ending with theseverance of the wire. a Stop 54 is retained-in elevated position by thepresence of finger 25 beneath it as long as the machine continues tooperate to insert fastenings.

- In accordance with the invention, means is provided for raising thework support to work clamping position simultaneously with theinitiation of the insertion of fastenings.

= In the illustrated construction, such mechanism comprises a lever 6fulcrumed at 66 to the horn post 14 and operated by a rod 68 pivoted at70 to the operating lever 64: and normally pressed downwardly by aspring 72 wl ich consequently tends to main-' tam the work support inelevated position. The rod 68 is operated from the cam shaft of themachine by means comprising the usual pawl and ratchetmechanism (notshown) for compensating the movements of the work support to thethickness of the work carried there ay. The operating lever M issupported by lever 7e loosely mounted on the shaft 50 and fulcrumed tothe operuting lever at 76insuch manner as to form a toggle with theportion 7 8 of the lever. The supporting lever 7- in turn is formed withan arm 80 inclined upwardly from the shaft 50, and mechanism is providedfor operating the supporting lever of :1 form such As will be under-' asto take the weight of the worksupport and its associated parts from theoperator, such mechanism comprising a pin 82- carried by a wiper armsleeve'don a shaft 86 also fixed in the, framenof the machine andco-operating with'ablock 83 secured tothe arm 80 of the supportinglever-7e by screws 84:. Whenthe work supportis in work clampingposition, the arm 85- iszdisposed substantially at right angles to; thearm 80 of the supporting lever-so that a force eX- erted downwardly at/Z6 asby pressure upon the work will be transmitted through thearm 85to its shafte86 with no tendency to, turn the shaft; The sleeve 87,whichcarries the arm 85 is operated by a sector gearv 88 carried by anarm*89 eX tending upwardly from a yoke-shaped portion of thefllever48underlying the shaft 50.v The gear 88-1ne'shes' withteeth of, a toothedflange 90-, on the sleeve 87, the construction being such that thedepression ofthetreadle {i8 causes movement of the sectorgearZtocarrythe arm 85 to a positionto elevate the horn. Theshafts 50and 86 arebraced. by-an ar'mQlbolted' on the shafts and formedatiitsaupper end with a bracket 92 having an inwardly ex? tendingportion overlying the flange 90rvof the sleeve 87.' w

The initial movement ofthe supporting lever 74' upon depression of the'treadle causes the lever 64'to swing about thepoint '70, thus elevating'the horn 13 and the work supported thereonf After the work has beencarried against the foot plate of the machine, however, the continuedmovement of the lever 74 moves the lever 64 about the point 66compressing the spring 72. The normal compression of the spring 72 maypreferably be adjusted, sucl1'adjustment,-in the illustratedconstruction, being provided for by a'set'screw 93 threaded into an ear94: on the bracket'92. The further screw93 is set in, the less fulcrum 76 can be raised, and accordingly the less will lever 78 be rocked aboutfulcrum '66 withfia correspondingly less compression of spring 7-2; Thesector gear 88 is adj ustably connectedto' its arm 89 by pin and slotconnections 95 and a set screw 96 threaded into the arm andbearmgagainst the rear face of the gear.

Inasmuch as the horn 13 isunder'the control of the treadle 4:55, therelease or the treadle by the operatonin the absence of mechanism otherthan the 'hereinbefore de-L, scribed, would causethe work support to belowered immediately thereafter. The operator may, however,releasethetreadleatj any timein' the cycle of operations of the machine, inconsequence of which the work support might'be lowered at a time whenthe final fasteningwas only partially inserted into the work, so thatsuch fastening would project from the Work; in orderto insure that thefinal fastening willbe fully inserted and to enable the eiiicientoperation of' the wire severing mechanism in severing the section ofthewire inserted in the work from the wire, I provide mechanism formaintaining the work support in work clamping position until the finalfastening has been fully inserted and severed from the wire. Preferably,and as shown, such mechanism-comprises a latch 98 fulcrumed on a bracketsecured to the shafts50 and 8'6, respectively, and disposed forengagement with a shoulder 100' on the treadle 48 The latch9 8' isreleased from engagement withthe shoulder 100 by operation: of a rod102connected to the latch 98 and toan arm 104 integrally connected with thearm 58 which operates the wire severing mechanism.

The manner of operation of applicants improved mechanism will. itisbelieved, be readily apparent from the foregoing-description butmaybebriefly summarized as follows: When: the: treadle 48 is depressed bythe operator the horn is immediately elevated from'work receivingto-worh clampingposition by the sector gear- 88-, sleeve 87 arm 85,supporting lever 74- and operating lever 64. The depression of thetreadl-e also turnsthe rod 32. sothat the spring 42 open ates throughthe collar 34 whenever the stop, 5.4 is carried out of the pathof:movement" of the finger: 26 tovmove the finger away-from-beneath thecollar 25: on the rod 16 to permit the feeding of the wire to beresumed; The treadle is. normally maintainedain depressed position bythe-latch 98 which, regardless of the time in the cycle of operationsof: the machine when the operator removes his foot from the treadle,will: permit, the work support to 1 be lowered from Workclampingposition only after the final, fastening has been fully inserted and,severed from the wire.-. The release; of the treadle by the l-atch98permits the cam surface 46 to move downwardly away from the arm 44; andallows the rod, 321 and the collar-3-8 carried thereby: to, be moved bythe spring 53 so as to. shift the finger 26 beneath the collar 25 tosuspend the feed of the wire.

Having described my invention, what I claim as new and desire to secureby Letters Patent ofv the United States is:-

1. In a; machine of: the class described, fastening inserting mechanism,means for suspending the insertion of fastenings during the continuedoperation of. the machine, and positively operating meansmanuallyoperable and automatically controlled to render the suspending meansinoperatire.

2. In a machine of the class described,v fastening inserting mechanism,means for severing fastenings from fastening stock, means for suspendingthe insertion of. fastenings during the continued operation'of themachine, andrmanually operable means con-- trolled by the stock severingmeans:

4. In a machine for" inserting fastenings,v

wire feeding means, means for suspending? the. operation of the wirefee-ding means, manually operable means forrendering the suspendingmeans inoperative, and positively operating automatic means for corntrolling the movement of the: suspending means by the manually operatedmean-s;

In machine for inserting fastenings, wire, feeding: means, means forsuspending the operation of the wire feeding means, manually operablemeans for yieldingly urging the suspending means toward inoperativeposition, and mcansrfor positively controlling the movement of thesuspendingmeans to inoperative position.-

6. In a machine for inserting fastenings, wire feeding means, manuallyoperable means for suspendingthe operation of the wire feeding means,means tendingrtorender the suspending means inoperative, and? meansoperated. in timed relation with the wirefeeding means for positivelymaintain ing the suspending means inoperative position except: at apredetermined time the cycle of operations of the machine;

7. In a machine for inserting fastenings, wire feeding means, means forsuspending the operation of the wire feeding means, manually operatedmeans for yieldingly urging the suspending means toward inoperativeposition, and, means operating: positively and automatically to controlthe movement of; the suspending: means: to inoperative position.

8. In a machinefor inserting fastenings, wire feedingmeans, means forsuspending.- the operation of the wire feeding means, and means formoving the suspending means to inoperative position comprising a: rod, alug yieldingly carried by the rod and tending, to move the suspendingmeans to inoperative position upon movement, in one direction of therod, and operator-controlled means for moving the rod.

9. In; a; machine for inserting fastenings,

wire feeding means, means for suspending the operation of the wirefeeding means, means for moving the suspending-means to inoperativeposition comprising a, rod, yielding connections between; the rod: and:thesuspending means, and. operating meansforthe rod comprising atreadle'andco-operat- 'ing' parts between the treadle and rod foreffecting angular movement of the rod.

10. In a machine for insertingfastenings,

" wire feeding means, means for suspending the operation of the wirefeeding means, a

member for controlling the suspending means, means operative when thecontrolling member is 1n one position yleldi'nglyto urge the suspendingmeans to inoperative position, means for rendering the suspendrelationto the wirefeeding means compris' ing a rod, a member yielding-1}mounted on said rod and tending upon movement of the rod to one positionto, move the suspending means to inoperative position, a second membercarried by said rod and spaced from the first-mentioned member andoperative upon movement of the rod to another position to render thesuspending means operative, a

treadl e for moving the rod to said first-mentioned position, andvielding means for moving the rod from said,first-mentionedposition tosaid second-mentioned position.

' 12. In a fastening inserting machine, Wire feeding means. means forsuspending the operation of the wire feeding means, wire evering means,andmanually operable means controlled by the wire severing means forrendering the suspending means inoperative. L

13. In a fastening inserting machine, wire operation of the wire feedingmeans, means for yieldingly urging the suspending means towardinoperative position, wire severing means, and means operativelyconnected with the wire severing means for controlling the movement ofthe suspending meansto inoperative position.

14. In a fastening inserting machine, wire feeding" means, means forsuspending the operation of the wire feeding means, means tending torender the suspending means inoperative, a stop normally interposed inthe path of movement of the suspending means, and, means operated intimed relation with the wire feeding means for moving said stop out ofthe path of movement of the suspending means to permit the wire feedingmeans to become operative at a predetermined time in the cycle ofoperations of, the machine. Y

15. In a fastening inserting machine, wire feeding means, means forsuspending the operation of the wire feeding means, a stop jectingmember. feeding means, means for suspending the devicenormally-interposed in the path of movement of the suspendin'g' means,wire severing means, and means operated by t e wire severing means formoving the stop device out of the path of movement of the suspendingmeans to permit the wire feeding means to be rendered operativesubstanially simultaneously with the operation of the wire severingmeansg 16. In afastening'inserting machine, wire feeding means, amemberfor suspending the "operation of the wire feeding means, means tendingto movesaidmember to inoperative position to render the wire feedingmeans operative,a stop device having aflaterally projecting.portion-normally interposed in the path of movement of said member, andmeans for moving; the stop device 'to carry the projecting portion ofthedevice out of the path-of movement of said member to permit movementofsaidmember to inoperative position." I 17; In-a fastening insertingmachine, wire feeding means, a member for suspending the operation ofthe wire feeding means, --means" tending to move'themeinber out ofoperative position, a stopdevice having a laterally extending portionnormally interposed in the' path of movement of sa-id'member, and meansfor movingsaidstop device at a predetermined time I in the cycle ofopera. tions of .the machine to carry said projection out of the path ofmovement of said member to permitthemember to move to inoperativeposition 'torender the wire feeding means operative, said moving meanscomprising a yielding connection operable to permit movement of thestopdevice, relatively' thereto upon engagement of the proportion of the-stop'device with said 18; Ina machine of the-class described, wirefeeding means, wire severing-means, means controlled by the wireseveringmeans for suspending 'the operation-of the wire "feeding means, andmeans separate from the wiresevering means for operating thesuspendingmeans. i

-19."In"1a. machine of the class described, wire feeding means, meansfor suspending the operation of the wire feeding means, wire severingmeans," and manually operable means controlled by the wi're severing.means for rendering the suspending means 'inope'rativ e substantiallysimultaneously with the operationof the wire severin'gme'ans.

' 20. In a machine for insertin-g'fastenings, I

wire feeding means, wire severing means, a

work support movable between workreceiving and work clamping positions,and means operable by the wire severing means to con trol the movementof the work support from work clamping to work receiving position.

21. In a machine for inserting. fastenings, Wire feedingmeans, wiresevering means, a

, new

work support movable between work receiving and work clamping positions,and means for controlling the work support operated by the wire severingmeans constructed to cause movement of the work support from workclamping to work receiving position substantially simultaneously withthe operation of the wire severing means to sever a fastening from thewire.

22. In a. machine for inserting fastenings, wire feeding means, wiresevering means, a work support, a treadle for moving the work supportfrom work receiving position to work clamping position, means forretaining the work support in work clamping position, and meansoperatively connected with the wire severing means to release theretaining means.

23. In a machine for inserting fastenings, wire feeding means, a worksupport movable between work receiving position and work clampingposition, a treadle for moving the work support to work clamping position, a latch engaging the treadle for retaining the work support inwork clamping position, and means for automatically releasing said latchat a predetermined time in each cycle of operations of the machine.

at. In a machine for inserting fastenings, wire feeding means, wiresevering means, a work support, a treadle for moving the work supportfrom work receiving position to work clamping position, a latch adaptedfor engagement with the treadle to hold the treadle and the worksupportin work clamping position, and means for releasing the latch to permitmovement of the treadle and the work supportto work receiving positionsubstantially simultaneously with the severance of a fastening fromthevwire.

25. In a machine for inserting fastenings, wire feedin means, means forsuspending the operation of the wire feeding means, a treadle forcontrolling the suspending means, means tending whenever the treadle isin one position to urge the suspending means to inoperative position,means for rendering the suspending means operative upon move ment of thetreadle to another position, and means tending to move the treadle tosaid last mentioned position.

26. A fastening inserting machine having, in combination, wire feedingmeans, a finger movable between two positions in one of which it isoperative and in the other inoperative to suspend the operation of thewire feeding means, means yieldingly tend ing to move said finger tofeed permitting position, means yieldingly tending to move said fingerto feed suspending position,

a lever arranged for movement between two positions in one of which itrenchine.

27. A fastening inserting machinehaving, in combination, wirefeedingmeans, a finger positionable for suspending the operation ofthe wirefeeding means, a treadle controlled rod provided with a pair o lugs oneof which upon movement of the rod in one direction tends to move thefinger to inoperative position thus permitting the feeding of wire andthe other of which upon movement of the rod in the opposite directionmoves the finger to operative position to suspend the feeding of thewire, and a stop under the control of a cyclically moving part of themachine to control the movement of the finger to inc erative position.

8; fastening inserting machine having, in combination, wire feedingmeans, a member movable from one position to another to permit orsuspend the operation of the wire feeding means, and a stop, operativeunder the control of a cyclically moving part of the machine to preventmovement of said member to position to permit the feed of i e except atpredetermined times, movable out of the path o movement of said memberunder the control of said cyclically moving part. i

29 A fastening inserting machine having, in combination, means forcontrolling the initiation of wire feed comprising a'finger, means formoving the finger between feed permitting and feed suspending positions,a stop positioned to prevent feed permitting movement of the finger, andmeans, operative after the machine is started, to move the stop from thepath of the finger to permit the movement of the latter to feedpermitting position at a predetermined point in the cycle of operationof the machine.

In testimony whereof I have signed my name to this specification.

snonsn eonnn;

